CODEWITHSUNDEEP
javamysqlsqlrowset
user20913388
user20913388

Reputation:

Java 8 to Java 19 migration of RowSet

When migrating my project to Java 19, I am getting this error related to our use of RowSet:

cannot access class com.sun.rowset.CachedRowSetImpl (in module java.sql.rowset) because module java.sql.rowset does not export com.sun.rowset to module

and this is my code

import javax.sql.rowset.*;
import com.sun.rowset.CachedRowSetImpl;
import java.sql.*;
import javax.sql.rowset.CachedRowSet;
public static ResultSet dbExecuteQuery(String queryStmt) throws SQLException, ClassNotFoundException {
    //Declare statement, resultSet and CachedResultSet as null
    Statement stmt = null;
    ResultSet resultSet = null;
    CachedRowSetImpl crs = null;
    try {
        //Connect to DB (Establish Oracle Connection)
        dbConnect();
        System.out.println("Select statement: " + queryStmt + "\n");

        //Create statement
        stmt = conn.createStatement();

        //Execute select (query) operation
        resultSet = stmt.executeQuery(queryStmt);

        //CachedRowSet Implementation
        //In order to prevent "java.sql.SQLRecoverableException: Closed Connection: next" error
        //We are using CachedRowSet
        crs = new CachedRowSetImpl();
        crs.populate(resultSet);
    } catch (SQLException e) {
        System.out.println("Problem occurred at executeQuery operation : " + e);
        throw e;
    } finally {
        if (resultSet != null) {
            //Close resultSet
            resultSet.close();
        }
        if (stmt != null) {
            //Close Statement
            stmt.close();
        }
        //Close connection
        dbDisconnect();
    }
    //Return CachedRowSet
    return crs;
}

I try because I don't know how to solve my problem and i expect that this problem will be solve

Upvotes: 2

Views: 472

Answers (1)

Karol Dowbecki
Karol Dowbecki

Reputation: 44952

com.sun.rowset.CachedRowSetImpl is a JDBC implementation detail. By historic convention all the classes under com.sun package are considered implementation detail. The distinction between JDK implementation detail and interface was enforced with the introduction of Java 9 module system.

In short you don't want to write your code depending on the JDK implementation details as they can change without warning.

See How to Use CachedRowSet in JDBC, section 3. Creating a CachedRowSet Object, which shows how to create the same object using RowSetProvider and a CachedRowSet interface:

RowSetFactory rsf = RowSetProvider.newFactory();
CachedRowSet crs = rsf.createCachedRowSet();

Upvotes: 2

Related Questions